CN106076371B - 一种AgCl/Ag核壳结构纳米可见光催化剂的制备方法 - Google Patents
一种AgCl/Ag核壳结构纳米可见光催化剂的制备方法 Download PDFInfo
- Publication number
- CN106076371B CN106076371B CN201610386032.9A CN201610386032A CN106076371B CN 106076371 B CN106076371 B CN 106076371B CN 201610386032 A CN201610386032 A CN 201610386032A CN 106076371 B CN106076371 B CN 106076371B
- Authority
- CN
- China
- Prior art keywords
- agcl
- preparation
- added
- deionized water
- chitosan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229910021607 Silver chloride Inorganic materials 0.000 title claims abstract description 24
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000003054 catalyst Substances 0.000 title claims description 21
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 20
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229920001661 Chitosan Polymers 0.000 claims abstract description 15
- 239000008367 deionised water Substances 0.000 claims abstract description 12
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 12
- QNAYBMKLOCPYGJ-REOHCLBHSA-N L-alanine Chemical compound C[C@H](N)C(O)=O QNAYBMKLOCPYGJ-REOHCLBHSA-N 0.000 claims abstract description 10
- 239000011258 core-shell material Substances 0.000 claims abstract description 10
- QNAYBMKLOCPYGJ-UHFFFAOYSA-N D-alpha-Ala Natural products CC([NH3+])C([O-])=O QNAYBMKLOCPYGJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910001961 silver nitrate Inorganic materials 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims description 16
- 238000004140 cleaning Methods 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 abstract description 6
- 239000002086 nanomaterial Substances 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 239000002253 acid Substances 0.000 abstract description 2
- 230000009471 action Effects 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000001737 promoting effect Effects 0.000 abstract 1
- 239000000975 dye Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 8
- 230000015556 catabolic process Effects 0.000 description 6
- 238000006731 degradation reaction Methods 0.000 description 6
- 239000011941 photocatalyst Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000004408 titanium dioxide Substances 0.000 description 4
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 229910052976 metal sulfide Inorganic materials 0.000 description 3
- 229960000907 methylthioninium chloride Drugs 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 230000001699 photocatalysis Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 description 2
- 229940012189 methyl orange Drugs 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 238000006552 photochemical reaction Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 2
- 229940043267 rhodamine b Drugs 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 241001465805 Nymphalidae Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009396 hybridization Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 239000002114 nanocomposite Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/06—Halogens; Compounds thereof
- B01J27/08—Halides
- B01J27/10—Chlorides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Catalysts (AREA)
Abstract
本发明公开了一种不对称核壳结构的AgCl/Ag纳米材料的制备方法,所采用的主要技术原理如下:利用壳聚糖只溶于酸性介质的特性将之溶解在含有盐酸的去离子水中,然后加入一定浓度的硝酸银溶液,在壳聚糖大分子的模板作用下形成纳米尺度的AgCl,然后再向体系中引入一定量的α‑氨基丙酸,利用α‑氨基丙酸的还原特性将部分AgCl转化为Ag单质生长在AgCl的表面形成核壳型纳米结构,本发明具有制备方法简便、易得、不需要特殊的设备,更容易推广的优点,且整个制备体系都是由无毒物质组成。
Description
技术领域
本发明涉及一种可见光催化剂的制备方法,具体涉及一种AgCl/Ag核壳结构纳米可见光催化剂的制备方法。
背景技术
全球工业化迅猛发展的同时也带来了日益严重的环境污染,从空气到水体再到土壤无一幸免,因此治理污染成为国内外广泛关注的焦点,也是当前科技领域的研究热点之一。传统的污水治理方法包括物理化学法和生物法两大类,虽然都有一定的效果,但也都不同程度地存在一些缺点。如前者一般处理成本较高、容易形成二次污染等,而后者则对难降解的有机物处理效率不高,因此寻找优异、高效、绿色、低耗的水处理方法是所有环境工作者迫切需要解决的问题。半导体光催化技术是近些年来兴起的一种绿色环境治理技术,被认为是最有前途和最有效的处理方法之一。其中纳米尺度的、能响应太阳光的催化技术最受欢迎,它能够利用太阳能将难降解的有机物完全转化为二氧化碳、水和其他无机小分子,具有高效、清洁、对环境和污染物无特殊要求等特点。而且纳米可见光催化剂不仅可以应用到污水处理方面,还广泛应用于空气净化、土壤修复、杀菌消毒等领域。
最早受到关注的半导体光催化剂是二氧化钛,然而二氧化钛的内禀特性使其投入实际应用存在局限性,如二氧化钛的禁带宽度较大(3~3.2V),仅能对紫外光有吸收,而太阳能到达地球表面后只有4~5%的紫外光,因而对太阳光的利用度非常低。通常使用二氧化钛做催化剂的时候都需要采用高压汞灯之类的专用紫外光源,不仅消耗电能,而且由于紫外线对人体有伤害,对整个光催化设备也有很高要求,从而使得处理量受到限制。相比较而言,具有可见光响应的光催化剂的应用更容易实现,因此,探索新方法制备新形貌的、具有高的光催化活性的可见光催化剂具有重要意义。如现有技术授权公告号:CN101733161B的中国发明专利,该发明实施例提供一种壳聚糖负载金属硫化物光催化剂的制备方法。属于有机无机杂化光催化剂材料制备领域。该方法包括如下步骤:制备壳聚糖金属离子配合物;配制前驱液;光化学反应;光催化剂的后处理:光化学反应结束后,经过滤、洗涤、干燥后即得壳聚糖负载金属硫化物光催化剂。该发明具有制备工艺简单,反应条件温和,反应可控性好、实用性强、设备要求低等优点。所制备的壳聚糖负载金属硫化物光催化剂在紫外光、可见光或自然太阳光下可降解甲基橙、亚甲基蓝等有机物,作为光催化剂在降解有机污染物方面具有较好的应用前景。
发明内容
本发明提供一种制备方法简便、易得、不需要特殊的设备的一种AgCl/Ag核壳结构纳米可见光催化剂的制备方法。
本发明为解决上述问题所采用的技术方案为:
一种AgCl/Ag核壳结构纳米可见光催化剂,该催化剂的核结构为AgCl,壳结构为Ag,利用壳聚糖只溶于酸性介质的特性将之溶解在含有盐酸的去离子水中,加入一定浓度的硝酸银溶液,在壳聚糖大分子的模板作用下形成纳米尺度的AgCl,再向体系中引入一定量的α-氨基丙酸,利用α-氨基丙酸的还原特性将部分AgCl转化为Ag单质生长在AgCl的表面形成核壳型纳米结构。
上述催化剂的核与壳之间以非对称形式复合。
一种AgCl/Ag核壳结构纳米可见光催化剂的制备方法,包括以下步骤:
将浓度为36%的浓盐酸加入去离子水中,并加入壳聚糖搅拌1~2小时使之溶解,然后加入硝酸银,并搅拌均匀后加入还原剂,继续搅拌1小时,得到紫色悬浮液;
将紫色悬浮液静置12小时,所得紫色沉淀离心分离并用去离子水清洗1-5次,即制得AgCl/Ag核壳纳米复合物。
作为优选, 其特征在于:
上述36%的浓盐酸加入去离子水的操作温度为15℃~25℃;
上述壳聚糖搅拌溶解后的浓度为0.5g-1.5g/L;
上述硝酸银加入后,该硝酸银在溶液中的浓度为0.05~0.15 mol•L-1;
上述还原剂加入后,该还原剂在溶液中浓度为0.05~0.15 mol•L-1。
作为优选,上述的还原剂为α-氨基丙酸,是一种氨基酸,从而使得所制备的光催化剂完全生物相容,可以应用到饮用水净化和与人类生活密切相关环境的空气净化等领域。
作为优选,上述所得紫色沉淀离心分离并用去离子水清洗2次。
与已有技术相比,本发明具有如下优点:
1、所得到的AgCl /Ag纳米复合光催化剂对阴面房间的散射光具有响应,能够完成对模型有机物的完全降解;
2、整个制备体系都是由无毒物质组成的,特别是壳聚糖是一种生物相容性良好的物质,其本身就来源于甲壳类动物的壳,而α-氨基丙酸是一种氨基酸,从而使得所制备的这种光催化剂完全生物相容,可以应用到饮用水净化和与人类生活密切相关环境的空气净化等领域;
3、制备方法简便、易得、不需要特殊的设备,更容易推广。
附图说明
图1实施例1的AgCl /Ag纳米核壳结构的透射电子显微镜镜图像;
图2实施例2的AgCl /Ag纳米核壳结构的透射电子显微镜镜图像;
图3模型染料(罗丹明B)和与AgCl /Ag纳米核壳光催化剂混合并置于阴面房间三天后的数码图像;
图4模型染料(亚甲基蓝)和与AgCl /Ag纳米核壳光催化剂混合并置于阴面房间三天后的数码图像。
具体实施例
下面结合附图和具体实施例对本发明做进一步的说明,但本发明的制备方案不受限于这些实施例。
实施例:
(1)将1 mL的浓盐酸加到20 mL去离子水中,加入0.2 g的壳聚糖并搅拌1小时使之完全溶解,所述浓盐酸浓度为36%;
(2)加入硝酸银,使其浓度为0.1 mol•L-1, 搅拌均匀后加入α-氨基丙酸,使其浓度为0.2 mol•L-1;
(3)继续搅拌1小时后,将反应体系静置12小时,将所得紫色沉淀离心分离并用去离子水清洗两次留用。这些紫色沉淀通过透射电子显微镜表征可以看到明显的非对称核壳结构,如图1。
(4)所有步骤都在环境温度下完成,环境温度为15℃~25℃下。
实施例2:
(1)将1.5 mL的浓盐酸加到20 mL去离子水中,加入0.3 g的壳聚糖并搅拌2小时使之完全溶解,所述浓盐酸浓度为36%;
(2)加入硝酸银,使其浓度为0.15 mol•L-1, 搅拌均匀后加入α-氨基丙酸,使其浓度为0.3 mol•L-1;
(3)继续搅拌1小时后,将反应体系静置12小时,用吸管吸去上层清液,再加入20mL的去离子水,搅拌5分钟后继续静置并重复上述操作2次以实现对产物的清洗。将所得紫色沉淀离心分离并用去离子水清洗两次留用。这些紫色产物形貌通过透射电子显微镜表征,可以看到明显的核壳结构,如图2。
(4)所有步骤都在环境温度下完成,环境温度为15℃~25℃下。
核壳型AgCl/Ag复合纳米材料光催化剂的性能研究
取适量步骤一所制得的AgCl/Ag复合纳米光催化剂超声分散在浓度为20 mg•L-1的模型染料水溶液中,于暗处搅拌0.5小时达到吸附平衡后,在不同可见光源辐照下开始光催化性能研究实验,这些光源包括:氙灯、家用日光灯和自然光,自然光可以是太阳光直接照射,也可以是阴面房间里自然光的散射光。每隔一定时间间隔取约三毫升左右的催化体系液体离心分离,取上层清液通过紫外可见分光光谱仪分析模型染料的特征峰吸光度值来判断光催化的进程直至染料完全降解,完全脱色所需时间与光强度有关。模型染料可以是亚甲基兰、罗丹明B、甲基橙、甲基紫等多种,除模型染料外,被降解的物质还可以是其他有机污染物,如硝基苯等。典型示例见图3。
对比实验:
实验方法:设置实验组A和对照组B,其中实验组为本实施例所的产品,分别对其特征和降解做记录,结果如下表1。
模型染料 | 有机污染物 | 降解速度 | 对环境的影响 | |
实验组A | 优 | 优 | 优 | 优 |
对照组B | 良 | 优 | 良 | 优 |
从上表可以看出,实验组在模型染料、降解速度、明显优与对照组,且可以看出本实施例所得产品在降解模型染料方面具有较好的应用前景,降解速度优于试验组,可以更好的减少降解周期。
虽然本发明已以实施例公开如上,但其并非用以限定本发明的保护范围,任何熟悉本领域的技术人员,在不脱离本发明的构思和范围内所做的更动和润饰,均应属于本发明所附权利要求的保护范围。
Claims (3)
1.一种AgCl/Ag核壳结构纳米可见光催化剂的制备方法,其特征在于以下步骤:
1)将浓度为36%的浓盐酸加入去离子水中,并加入壳聚糖搅拌1~2小时使之溶解,然后加入硝酸银,并搅拌均匀后加入还原剂,继续搅拌1小时,得到紫色悬浮液;
2)将紫色悬浮液静置12小时,所得紫色沉淀离心分离并用去离子水清洗1-5次,即制得AgCl/Ag核壳纳米复合物;
所述的步骤1)中还原剂为α-氨基丙酸;
所述的硝酸银的浓度为0.15mol·L-1,α-氨基丙酸的浓度为0.3mol·L-1;
所述的壳聚糖搅拌溶解后的浓度为0.5g-1.5g/L。
2.根据权利要求1所述的制备方法,其特征在于:
所述的步骤1)中:
所述的36%的浓盐酸加入去离子水的操作温度为15℃~25℃。
3.根据权利要求1所述的制备方法,其特征在于:步骤2)所述的去离子水清洗为2次。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610386032.9A CN106076371B (zh) | 2016-06-03 | 2016-06-03 | 一种AgCl/Ag核壳结构纳米可见光催化剂的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610386032.9A CN106076371B (zh) | 2016-06-03 | 2016-06-03 | 一种AgCl/Ag核壳结构纳米可见光催化剂的制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106076371A CN106076371A (zh) | 2016-11-09 |
CN106076371B true CN106076371B (zh) | 2019-05-10 |
Family
ID=57446925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610386032.9A Expired - Fee Related CN106076371B (zh) | 2016-06-03 | 2016-06-03 | 一种AgCl/Ag核壳结构纳米可见光催化剂的制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106076371B (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111648138B (zh) * | 2020-06-11 | 2024-02-27 | 咸阳师范学院 | 一种超疏水多孔壳聚糖/Ag@AgCl-TiO2复合材料及环保型口罩 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4605610A (en) * | 1984-03-15 | 1986-08-12 | Agfa-Gevaert Aktiengesellschaft | Emulsion rich in silver chloride, photographic recording material and process for the production of photographic recordings |
CN102441376A (zh) * | 2011-10-25 | 2012-05-09 | 通化师范学院 | 一种AgCl/Ag纳米可见光催化剂的光活化制备方法 |
CN103302307A (zh) * | 2013-06-25 | 2013-09-18 | 通化师范学院 | 一种银纳米粒子的制备方法及其促进黄瓜种子萌发、幼苗生长发育的方法 |
-
2016
- 2016-06-03 CN CN201610386032.9A patent/CN106076371B/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4605610A (en) * | 1984-03-15 | 1986-08-12 | Agfa-Gevaert Aktiengesellschaft | Emulsion rich in silver chloride, photographic recording material and process for the production of photographic recordings |
CN102441376A (zh) * | 2011-10-25 | 2012-05-09 | 通化师范学院 | 一种AgCl/Ag纳米可见光催化剂的光活化制备方法 |
CN103302307A (zh) * | 2013-06-25 | 2013-09-18 | 通化师范学院 | 一种银纳米粒子的制备方法及其促进黄瓜种子萌发、幼苗生长发育的方法 |
Non-Patent Citations (2)
Title |
---|
Ag@AgX纳米光催化材料的研究现状;成帆,等;《材料导报A:综述篇》;20150430;第29卷(第4期);第27-32、51页 |
Facile synthesis of sunlight-driven AgCl:Ag plasmonic nanophotocatalyst;Changhua An,et al;《Adv. Mater.》;20100507;第22卷;第2570-2574页 |
Also Published As
Publication number | Publication date |
---|---|
CN106076371A (zh) | 2016-11-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103657619B (zh) | 一种尺寸可控的二氧化钛纳米片光催化材料的制备方法 | |
CN106881111B (zh) | 氧化亚铜和银共同负载的钒酸铋复合光催化剂及其制备方法和应用 | |
CN102491450B (zh) | 一种利用紫外光-乙酰丙酮氧化处理染料废水的方法 | |
Khezrianjoo et al. | Photocatalytic degradation of acid yellow 36 using zinc oxide photocatalyst in aqueous media | |
CN105582916B (zh) | 一种二氧化钛依次沉积纳米金和铑的光催化剂的制备方法 | |
CN106315750B (zh) | 可见光催化剂二硫化钼负载二氧化钛纳米管电极及其制备方法和应用 | |
CN105964256A (zh) | 一种核壳型四氧化三铁/氧化石墨烯复合型纳米催化剂的制备方法 | |
CN106311195A (zh) | 光催化降解抗生素的催化剂及其制备方法和应用 | |
CN103611577B (zh) | 一种高效降解有机染料废水的可见光催化剂及其制备方法 | |
CN105233831A (zh) | 一种磁性ZnO@ZnFe2O4复合光催化剂及其制备方法和应用 | |
CN108079984A (zh) | 一种圆角立方体型羟基锡酸锌太阳光催化剂的制备方法 | |
CN103357395B (zh) | 镧系元素掺杂纳米管TiO2复合光催化剂的制备方法及其在VOCs治理中的应用 | |
CN104841463A (zh) | 一种BiOCl/P25复合光催化剂及其制备方法和应用 | |
CN110841669B (zh) | 利用零维黑磷量子点/一维管状氮化碳复合光催化剂处理重金属和有机污染物的方法 | |
CN106582619A (zh) | 氧化锰复合活性炭材料于脱氮中的应用 | |
CN106890655A (zh) | 一种具有高效可见光催化活性的Ag/AgCl/CdWO4催化剂 | |
CN106076371B (zh) | 一种AgCl/Ag核壳结构纳米可见光催化剂的制备方法 | |
CN114570406A (zh) | 一种用于有机污水修复的氮化碳复合光催化材料及其制备方法 | |
CN109201091A (zh) | 一种水质净化用磁响应型核壳光催化剂及其制备方法 | |
CN106925253A (zh) | 一种纳米级臭氧氧化催化剂的制备方法与应用 | |
CN105000625B (zh) | 一种染料废水的光催化处理方法 | |
CN108314214A (zh) | 一种非均相臭氧催化降解印染废水的工艺 | |
CN107649154A (zh) | 可见光光催化剂负载二氧化钛纳米管电极及其制备方法和应用 | |
CN104368338A (zh) | 一种具有氨基修饰的Pd/TiO2光催化剂的制备方法 | |
CN109650521A (zh) | 一种含染料废水的催化降解方法及其催化剂 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190510 Termination date: 20210603 |
|
CF01 | Termination of patent right due to non-payment of annual fee |