CN112916045A - 一种负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料的制备方法 - Google Patents
一种负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料的制备方法 Download PDFInfo
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Abstract
本发明公开了一种负载ZnO‑TiO2磁性氧化石墨烯/壳聚糖复合材料的制备方法,包括下述步骤:首先将十二水合硫酸铁铵和六水合硫酸亚铁铵溶于超纯水中,加入氨水和壳聚糖/氧化石墨烯悬浮液,之后将ZnO凝胶和TiO2凝胶混合煅烧后得到ZnO‑TiO2粉末。将得到的磁性壳聚糖/氧化石墨烯粉末和ZnO‑TiO2粉末溶于乙醇后搅拌混合,水热反应,干燥后得到负载ZnO‑TiO2磁性氧化石墨烯/壳聚糖复合材料。本发明方法所制得的复合材料可用于污水处理,并且具备优异的吸附性能,对污水中重金属和有机污染物都能有效去除,具有较好的市场前景。
Description
技术领域
本发明涉及光催化剂领域,具体的来说,是一种具有优异吸附性和光催化性能的负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料及其制备方法。
背景技术
水是生命之源,我们的日常生活、农业生产以及工业合成都离不开水。随着工业经济的不断快速地发展,所带来的水环境问题也日益突出。目前,水体污染也呈现出越来越复杂的态势,各种污染物混杂。其中,染料污染占了很大一部分。染料废水由于含有大量的有毒有机残留物、无机物、酸、碱等,排放到正常水体中不仅会毒害环境、影响人体的健康,还会影响水体美观。此外,水体中细菌污染也会影响人类的健康,如志贺氏菌、沙门氏菌、大肠杆菌、霍乱弧菌、结肠弯曲杆菌等。因此,寻找一种能够同时有效地去除染料,又具有抗菌作用的材料变得非常有必要。
最近几十年,不同的高级氧化技术(AOPs)被发展去利用羟基自由基(·OH)清除顽固的染料污染物。在众多的AOPs中,二氧化钛(TiO2)多项光催化技术在处理污水染料方面被认为是一种经济且高效的方法。然而,由于TiO2的能带隙较宽,催化时能量需求多,这在很大程度上限制其在日光下对有机染料的催化降解能力。因此,只有减小TiO2的能带隙才能提高其光催化效率,利用氧化锌杂化二氧化钛可以有效解决这个问题。同时将二氧化钛负载在氧化石墨烯上可以进一步提高它的光降解效率。通过将氧化石墨烯与壳聚糖复合,同时进行磁化,可以有效提升其吸附性能。
发明内容
本发明的目的在于提供一种负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料的制备方法,包括以下步骤:
(1)将壳聚糖粉末加入冰乙酸中形成壳聚糖溶液,然后将氧化石墨烯加入超纯水中,通过超声分散形成氧化石墨烯分散液,搅拌的同时将氧化石墨烯分散液缓慢地加入壳聚糖溶液中,然后继续搅拌1-2h并熟化10-12h,即可得到壳聚糖/氧化石墨烯悬浮液;
(2)在氮气的保护下,将十二水合硫酸铁铵和六水合硫酸亚铁铵溶于超纯水中,快速加入的氨水,并将上述得到的壳聚糖/氧化石墨烯悬浮液缓慢加入,之后在85℃,300r/min条件下搅拌,冷却至室温,然后用超纯水和无水乙醇洗涤数次,真空干燥,磨碎后放入干燥器备用;
(3)称取醋酸锌加入到乙醇溶液中,磁力搅拌,然后加入三乙醇胺,搅拌30min,得到ZnO溶胶;将钛酸四丁酯加入到乙醇中,搅拌1-2h,然后加入醋酸,最后将混合液搅拌1-2h,加入盐酸,得到TiO2溶胶;将ZnO溶胶滴加到TiO2溶胶中反应1-2h,得到ZnO-TiO2溶胶,干燥后,将所得ZnO-TiO2的干凝胶煅烧,得到ZnO-TiO2粉末;
(4)将步骤(2)产物和步骤(3)产物分别加入乙醇中,超声分散1-2h,之后混合水热反应,干燥得到负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料。
优选的,所述步骤(1)中,壳聚糖粉末与氧化石墨烯的质量比为(0.5-1):(0.1-0.2)。
优选的,所述步骤(2)中,十二水合硫酸铁铵和六水合硫酸亚铁铵的质量比为(2.4-4.8):(0.9-1.9)。
优选的,所述步骤(2)中,氨水的体积为8-12ml,质量浓度为25%。
优选的,所述步骤(3)中,醋酸锌和钛酸四丁酯的质量体积比为(0.5-1.8)g:(10-15)ml。
优选的,所述步骤(3)中,三乙醇胺、醋酸和盐酸的体积比为(4-10):(4-10):(100-120)。
优选的,所述步骤(3)中,煅烧温度为500-600℃,煅烧时间为3-5h。
优选的,所述步骤(4)中,水热反应温度为100-150℃,反应时间为10-15h。
与现有技术相比,本发明具有的有益效果如下:
(1)本发明提供了一种负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料及其制备方法,利用ZnO杂化TiO2,将其负载在磁性壳聚糖氧化石墨烯载体上,增强了材料的磁性和吸附性,提升了其光催化性能。在光催化下能有效降解污水中有机污染物。本发明提供的材料可以多次循环利用。另外,该方法简单且易操作,反应温和,制备的污水处理材料具有优异的吸附性。
(2)所述工艺非常简单,得到的负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料具有良好的吸附性,氧化石墨烯材料本身就具有良好的比表面积以及吸附性,被广泛用于污水处理材料。壳聚糖分子结构中含有氨基、羟基、乙酰氨基、氧桥一级富含电子的吡喃环等活性基团,能够很好地吸附污水中有机污染物和重金属,而TiO2在紫外光的照射和光解的过程中会产生如H2O2,O3等氧化物质和活性基团,这些物质具有的强氧化性可以将有机物氧化成小分子的有机物或无机物,能有效的去除污水中的有机物,本发明制备的负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料成本低、处理方法简单,能有效净化污水。
(3)本发明原料简单,易于获取,并且对环境友好。
具体实施方案
实施例1:
一种负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料,制备方法包括以下步骤:
(1)将0.75g壳聚糖粉末加入20ml冰乙酸中形成壳聚糖溶液,然后将0.15g氧化石墨烯加入20mL超纯水中,通过超声分散形成氧化石墨烯分散液,搅拌的同时将氧化石墨烯分散液缓慢地加入壳聚糖溶液中,然后继续搅拌1.5h并熟化11h,即可得到壳聚糖/氧化石墨烯悬浮液;
(2)在氮气的保护下,将3.6g十二水合硫酸铁铵和1.54g六水合硫酸亚铁铵溶于30mL超纯水中,快速加入15mL 25%的氨水,并将上述得到的壳聚糖/氧化石墨烯悬浮液缓慢加入,之后在85℃,300r/min条件下搅拌40min,冷却至室温,然后用超纯水和无水乙醇洗涤数次,50℃真空干燥24h,磨碎后放入干燥器备用;
(3)称取1g醋酸锌加入到50mL乙醇溶液中,50℃磁力搅拌40min。然后加入6ml三乙醇胺,搅拌30min,得到ZnO溶胶;将12ml钛酸四丁酯加入到10mL乙醇中,65℃搅拌1.5h,然后加入6ml醋酸。最后将混合液在65℃下搅拌1.5h,加入110ml盐酸,得到TiO2溶胶;65℃下,将ZnO溶胶滴加到TiO2溶胶中反应1.5h,得到ZnO-TiO2溶胶,干燥后,将所得ZnO-TiO2的干凝胶在550℃下煅烧4h,得到ZnO-TiO2粉末;
(4)将步骤(2)产物和步骤(3)产物分别加入30ml乙醇中,超声分散1h,之后混合,在120℃下水热反应12h,干燥得到负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料。
实施例2:
一种负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料,制备方法包括以下步骤:
(1)将0.5g壳聚糖粉末加入20ml冰乙酸中形成壳聚糖溶液,然后将0.1g氧化石墨烯加入20mL超纯水中,通过超声分散形成氧化石墨烯分散液,搅拌的同时将氧化石墨烯分散液缓慢地加入壳聚糖溶液中,然后继续搅拌1h并熟化10h,即可得到壳聚糖/氧化石墨烯悬浮液;
(2)在氮气的保护下,将2.4g十二水合硫酸铁铵和0.9g六水合硫酸亚铁铵溶于30mL超纯水中,快速加入10mL 25%的氨水,并将上述得到的壳聚糖/氧化石墨烯悬浮液缓慢加入,之后在85℃,300r/min条件下搅拌30min,冷却至室温,然后用超纯水和无水乙醇洗涤数次,50℃真空干燥24h,磨碎后放入干燥器备用;
(3)称取0.5g醋酸锌加入到50mL乙醇溶液中,50℃磁力搅拌40min。然后加入5ml三乙醇胺,搅拌30min,得到ZnO溶胶;将10ml钛酸四丁酯加入到10mL乙醇中,60℃搅拌1h,然后加入5ml醋酸,最后将混合液在60℃下搅拌1h,加入100ml盐酸,得到TiO2溶胶;60℃下,将ZnO溶胶滴加到TiO2溶胶中反应1h,得到ZnO-TiO2溶胶,干燥后,将所得ZnO-TiO2的干凝胶在500℃下煅烧3h,得到ZnO-TiO2粉末;
(4)将步骤(2)产物和步骤(3)产物分别加入30ml乙醇中,超声分散1h,之后混合,在100℃下水热反应10h,干燥得到负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料。
实施例3:
一种负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料,制备方法包括以下步骤:
(1)将1g壳聚糖粉末加入20ml冰乙酸中形成壳聚糖溶液,然后将0.2g氧化石墨烯加入20mL超纯水中,通过超声分散形成氧化石墨烯分散液,搅拌的同时将氧化石墨烯分散液缓慢地加入壳聚糖溶液中,然后继续搅拌2h并熟化12h,即可得到壳聚糖/氧化石墨烯悬浮液;
(2)在氮气的保护下,将4.8g十二水合硫酸铁铵和1.9g六水合硫酸亚铁铵溶于30mL超纯水中,快速加入20mL 25%的氨水,并将上述得到的壳聚糖/氧化石墨烯悬浮液缓慢加入,之后在85℃,300r/min条件下搅拌45min,冷却至室温,然后用超纯水和无水乙醇洗涤数次,50℃真空干燥24h,磨碎后放入干燥器备用;
(3)称取1.8g醋酸锌加入到50mL乙醇溶液中,50℃磁力搅拌40min。然后加入10ml三乙醇胺,搅拌30min,得到ZnO溶胶;将钛酸四丁酯加入到10mL乙醇中,70℃搅拌2h,然后加入10ml醋酸,最后将混合液在70℃下搅拌2h,加入120ml盐酸,得到TiO2溶胶;70℃下,将ZnO溶胶滴加到TiO2溶胶中反应2h,得到ZnO-TiO2溶胶,干燥后,将所得ZnO-TiO2的干凝胶在600℃下煅烧5h,得到ZnO-TiO2粉末;
(4)将步骤(2)产物和步骤(3)产物分别加入30ml乙醇中,超声分散1h,之后混合,在150℃下水热反应15h,干燥得到负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料。
实施例4:
一种负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料,制备方法包括以下步骤:
(1)将0.7g壳聚糖粉末加入20ml冰乙酸中形成壳聚糖溶液,然后将0.12g氧化石墨烯加入20mL超纯水中,通过超声分散形成氧化石墨烯分散液,搅拌的同时将氧化石墨烯分散液缓慢地加入壳聚糖溶液中,然后继续搅拌1.5h并熟化11h,即可得到壳聚糖/氧化石墨烯悬浮液;
(2)在氮气的保护下,将3.6g十二水合硫酸铁铵和1.54g六水合硫酸亚铁铵溶于30mL超纯水中,快速加入11mL 25%的氨水,并将上述得到的壳聚糖/氧化石墨烯悬浮液缓慢加入,之后在85℃,300r/min条件下搅拌40min,冷却至室温,然后用超纯水和无水乙醇洗涤数次,50℃真空干燥24h,磨碎后放入干燥器备用;
(3)称取1g醋酸锌加入到50mL乙醇溶液中,50℃磁力搅拌40min。然后加入6ml三乙醇胺,搅拌30min,得到ZnO溶胶;将12ml钛酸四丁酯加入到10mL乙醇中,65℃搅拌1.5h,然后加入6ml醋酸。最后将混合液在65℃下搅拌1.5h,加入100ml盐酸水溶液,得到TiO2溶胶;65℃下,将ZnO溶胶滴加到TiO2溶胶中反应1.5h,得到ZnO-TiO2溶胶,干燥后,将所得ZnO-TiO2的干凝胶在520℃下煅烧4h,得到ZnO-TiO2粉末;
(4)将步骤(2)产物和步骤(3)产物分别加入30ml乙醇中,超声分散1h,之后混合,在110℃下水热反应12h,干燥得到负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料。
对比例1:
不负载ZnO-TiO2的磁性氧化石墨烯/壳聚糖复合材料,制备方法包括以下步骤:
没有步骤(3),其余方法与实施例1相同。
对比例2:
ZnO-TiO2材料,制备方法包括以下步骤:
没有步骤(1)、(2)和(4),其余步骤与实施例1相同。
性能测试:
取配置Pb2+浓度为20mg/L,亚甲基蓝浓度为20mg/L,甲基橙浓度为20mg/L的溶液。将溶液分成6份,每份1L,分别加入5g实施例1-4得到的负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料和对比例1-2所得产物,持续搅拌,光照4h,利用紫外分光光度计测量其中各组分浓度,由此计算去除率。
利用紫外分光光度计测量浓度时,首先以去离子水作为参照,配置不同浓度的标准溶液,利用紫外分光光度计测定溶液浓度,将浓度-吸光度标准曲线在最佳波长下绘制备用,在接下来的实验过程中,吸附后的污水浓度由吸光度标准曲线计算得出,如果遇到超出最大测试浓度的溶液,则需要通过稀释到最大值以下再进行测量,尽量减小测量误差;
实施例1制备的复合材料测试4h后,Pb2+的浓度为0.9mg/L,亚甲基蓝浓度为0.66mg/L,甲基橙浓度为0.94mg/L;
实施例2制备的复合材料测试4h后,Pb2+的浓度为0.9mg/L,亚甲基蓝浓度为0.48mg/L,甲基橙浓度为0.72mg/L;
实施例3制备的复合材料测试4h后,Pb2+的浓度为1.58mg/L,亚甲基蓝浓度为0.42mg/L,甲基橙浓度为1.12mg/L;
实施例4制备的复合材料测试4h后,Pb2+的浓度为1.54mg/L,亚甲基蓝浓度为0.96mg/L,甲基橙浓度为0.7mg/L;
对比例1制备的材料测试4h后,Pb2+的浓度为7.3mg/L,亚甲基蓝浓度为9.32mg/L,甲基橙浓度为8.7mg/L;
对比例2制备的材料测试4h后,Pb2+的浓度为10.14mg/L,亚甲基蓝浓度为6.96mg/L,甲基橙浓度为5.88mg/L;
实验结果见表1。
表1:实施例与对比例对污水中污染物的去除率
从表1可以看出,本发明实施例1-4制备的负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料能够有效去除污水中污染物,在光照44h后,对污水中污染物去除率均高于90%。从实施例1-4与对比例1的去除率对比可以看出,ZnO-TiO2的负载能够有效提升材料的催化性能,从实施例1-4与对比例2的去除率对比可以看出,磁性氧化石墨烯/壳聚糖基底能有效提升材料的吸附性。
最后应说明的是:以上各实施例仅用于说明本发明的技术方案,而非对其限制,尽管参照前述各实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。
Claims (9)
1.一种负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料的制备方法,其特征在于,包括以下步骤:
(1)将壳聚糖粉末加入冰乙酸中形成壳聚糖溶液,然后将氧化石墨烯加入超纯水中,通过超声分散形成氧化石墨烯分散液,搅拌的同时将氧化石墨烯分散液缓慢地加入壳聚糖溶液中,然后继续搅拌1-2h并熟化10-12h,即可得到壳聚糖/氧化石墨烯悬浮液;
(2)在氮气的保护下,将十二水合硫酸铁铵和六水合硫酸亚铁铵溶于超纯水中,快速加入的氨水,并将上述得到的壳聚糖/氧化石墨烯悬浮液缓慢加入,之后在85℃,300r/min条件下搅拌,冷却至室温,然后用超纯水和无水乙醇洗涤数次,真空干燥,磨碎后放入干燥器备用;
(3)称取醋酸锌加入到乙醇溶液中,磁力搅拌,然后加入三乙醇胺,搅拌30min,得到ZnO溶胶;将钛酸四丁酯加入到乙醇中,搅拌1-2h,然后加入醋酸,最后将混合液搅拌1-2h,加入盐酸,得到TiO2溶胶;将ZnO溶胶滴加到TiO2溶胶中反应1-2h,得到ZnO-TiO2溶胶,干燥后,将所得ZnO-TiO2的干凝胶煅烧,得到ZnO-TiO2粉末;
(4)将步骤(2)产物和步骤(3)产物分别加入乙醇中,超声分散1-2h,之后混合水热反应,干燥得到负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料。
2.如权利要求1所述的一种负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料的制备方法,其特征在于,所述步骤(1)中,壳聚糖粉末与氧化石墨烯的质量比为(0.5-1):(0.1-0.2)。
3.如权利要求1所述的一种负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料的制备方法,其特征在于,所述步骤(2)中,十二水合硫酸铁铵和六水合硫酸亚铁铵的质量比为(2.4-4.8):(0.9-1.9)。
4.如权利要求1所述的一种负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料的制备方法,其特征在于,所述步骤(2)中,氨水的体积为8-12ml,质量浓度为25%。
5.如权利要求1所述的一种负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料的制备方法,其特征在于,所述步骤(3)中,醋酸锌和钛酸四丁酯的质量体积比为(0.5-1.8)g:(10-15)ml。
6.如权利要求1所述的一种负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料的制备方法,其特征在于,所述步骤(3)中,三乙醇胺、醋酸和盐酸的体积比为(4-10):(4-10):(100-120)。
7.如权利要求1所述的一种负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料的制备方法,其特征在于,所述步骤(3)中,煅烧温度为500-600℃,煅烧时间为3-5h。
8.如权利要求1所述的一种负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料的制备方法,其特征在于,所述步骤(4)中,水热反应温度为100-150℃,反应时间为10-15h。
9.如权利要求1-8所述的一种负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料的制备方法,其特征在于,所述负载ZnO-TiO2磁性氧化石墨烯/壳聚糖复合材料应用于污水处理。
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CN113480785A (zh) * | 2021-08-16 | 2021-10-08 | 内蒙古元瓷新材料科技有限公司 | 一种壳聚糖钛化合物复合磁性石墨烯的制备方法 |
CN113583326A (zh) * | 2021-08-18 | 2021-11-02 | 安徽瑞琦塑胶科技有限公司 | 一种高强度抗菌型pe给水管及其生产工艺 |
CN114130397A (zh) * | 2021-11-26 | 2022-03-04 | 哈尔滨工业大学(深圳) | 一种ZnO基异质结光催化复合材料及其制备和应用 |
CN114590834A (zh) * | 2022-03-30 | 2022-06-07 | 广州天赐高新材料股份有限公司 | 一种纳米二氧化钛-氧化锌杂化材料及其合成方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103521191A (zh) * | 2013-10-15 | 2014-01-22 | 湖南大学 | 一种二氧化钛/壳聚糖/氧化石墨烯复合材料的制备方法及应用 |
CN105642246A (zh) * | 2016-03-25 | 2016-06-08 | 郑州大学 | 氧化石墨烯/壳聚糖多孔复合微球及其制备方法和应用 |
CN105749876A (zh) * | 2016-04-26 | 2016-07-13 | 福州大学 | 一种壳聚糖修饰的氧化石墨烯量子点吸附材料的制备方法 |
CN106365239A (zh) * | 2016-09-08 | 2017-02-01 | 天津工业大学 | 一种磁性氧化石墨烯/壳聚糖吸附剂的制备方法及应用 |
RU2659285C1 (ru) * | 2017-10-25 | 2018-06-29 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тамбовский государственный технический университет" (ФГБОУ ВО "ТГТУ") | Сорбент на основе модифицированного оксида графена и способ его получения |
CN108355623A (zh) * | 2018-03-23 | 2018-08-03 | 西安交通大学 | 磁性氧化石墨烯-壳聚糖复合材料及其制备方法和应用 |
CN108607563A (zh) * | 2018-03-18 | 2018-10-02 | 启东创绿绿化工程有限公司 | 一种磁性氧化石墨烯染料敏化复合物的制备方法 |
-
2021
- 2021-01-31 CN CN202110132090.XA patent/CN112916045A/zh active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103521191A (zh) * | 2013-10-15 | 2014-01-22 | 湖南大学 | 一种二氧化钛/壳聚糖/氧化石墨烯复合材料的制备方法及应用 |
CN105642246A (zh) * | 2016-03-25 | 2016-06-08 | 郑州大学 | 氧化石墨烯/壳聚糖多孔复合微球及其制备方法和应用 |
CN105749876A (zh) * | 2016-04-26 | 2016-07-13 | 福州大学 | 一种壳聚糖修饰的氧化石墨烯量子点吸附材料的制备方法 |
CN106365239A (zh) * | 2016-09-08 | 2017-02-01 | 天津工业大学 | 一种磁性氧化石墨烯/壳聚糖吸附剂的制备方法及应用 |
RU2659285C1 (ru) * | 2017-10-25 | 2018-06-29 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тамбовский государственный технический университет" (ФГБОУ ВО "ТГТУ") | Сорбент на основе модифицированного оксида графена и способ его получения |
CN108607563A (zh) * | 2018-03-18 | 2018-10-02 | 启东创绿绿化工程有限公司 | 一种磁性氧化石墨烯染料敏化复合物的制备方法 |
CN108355623A (zh) * | 2018-03-23 | 2018-08-03 | 西安交通大学 | 磁性氧化石墨烯-壳聚糖复合材料及其制备方法和应用 |
Non-Patent Citations (1)
Title |
---|
常会等: ""磁性壳聚糖/氧化石墨烯吸附材料的制备及其对Pb(Ⅱ)的吸附"", 《冶金分析》 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113480785A (zh) * | 2021-08-16 | 2021-10-08 | 内蒙古元瓷新材料科技有限公司 | 一种壳聚糖钛化合物复合磁性石墨烯的制备方法 |
CN113583326A (zh) * | 2021-08-18 | 2021-11-02 | 安徽瑞琦塑胶科技有限公司 | 一种高强度抗菌型pe给水管及其生产工艺 |
CN114130397A (zh) * | 2021-11-26 | 2022-03-04 | 哈尔滨工业大学(深圳) | 一种ZnO基异质结光催化复合材料及其制备和应用 |
CN114590834A (zh) * | 2022-03-30 | 2022-06-07 | 广州天赐高新材料股份有限公司 | 一种纳米二氧化钛-氧化锌杂化材料及其合成方法 |
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