CN106268632A - 一种生物炭光触媒甲醛净化剂及其制备方法 - Google Patents
一种生物炭光触媒甲醛净化剂及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种生物炭光触媒甲醛净化剂及其制备方法。其由以下重量份的原料制成:海带渣22‑34、浒苔13‑26、泡叶藻11‑22、竹粉15‑25、油茶壳12‑24、棕榈皮10‑15、向日葵秸秆8‑16、拟薄水铝石10‑15、硅藻土15‑20、辉沸石17‑29、金刚药石21‑29、水浮石16‑28、蒙脱石10‑15、纳米钛酸锶9‑17、纳米硫化锌5‑10。本发明通过海带渣、浒苔、泡叶藻等原料制成的生物炭不仅具有多孔特性,还具有良好的负离子释放和远红外线放射效能,能够有效吸附和分解甲醛,拟薄水铝石、辉沸石等煅烧制成的多孔陶瓷以及金刚药石、水浮石、蒙脱石本身在结构上和化学上的特殊构造有着吸附作用,对甲醛具有很强的吸附作用;本发明还利用了纳米钛酸锶、纳米硫化锌的光催化反应,可以高效率地除掉空气中甲醛。
Description
技术领域
本发明涉及一种甲醛净化剂及其制备方法,具体涉及一种生物炭光触媒甲醛净化剂及其制备方法。
背景技术
甲醛是一种透明无色,有刺激性气体,装修后室内的涂料、家具等都含有甲醛。长时间的吸入甲醛气体的话,是会引起人出现恶心、呕吐、咳嗽、胸闷、哮喘或者是肺气肿,也会引起慢性呼吸道疾病、女性月经紊乱、妊娠综合症、引起新生儿体质降低、染色体异常,引起少年儿童智力下降,被世界卫生组织确认为一类致癌和致畸性物质,是公认的变态反应源,也是潜在的强致突变物之一。其在室内空气中的危害尤为突出,因此国家室内空气甲醛含量≤0.1mg/m3。目前市场上的甲醛净化剂种类繁多,效果各异,但是大多数存在甲醛去除率低,效果不明显,无法将室内甲醛含量降至国家安全标准。
发明内容
本发明的目的在于针对现有的不足,提供一种吸除甲醛效果明显,见效快,去除率高的生物炭光触媒甲醛净化剂及其制备方法。
为实现上述目的,本发明采用如下的技术方案:
一种生物炭光触媒甲醛净化剂,由以下重量份的原料制成:海带渣22-34、浒苔13-26、泡叶藻11-22、竹粉15-25、油茶壳12-24、棕榈皮10-15、向日葵秸秆8-16、拟薄水铝石10-15、硅藻土15-20、辉沸石17-29、金刚药石21-29、水浮石16-28、蒙脱石10-15、纳米钛酸锶9-17、纳米硫化锌5-10。
一种生物炭光触媒甲醛净化剂的制备方法,包括以下步骤:
(1)将金刚药石、水浮石、蒙脱石混合均匀,粉碎,过300-400目筛,然后加水搅拌制成浓度为45-55%的悬浮液,5000-8000r/min高速搅拌20-45min,喷雾干燥成粉末,然后加入纳米钛酸锶和纳米硫化锌,4000-6000r/min干法球磨2-3h,球料比10-15:1,即得光触媒粉;
(2)将拟薄水铝石、硅藻土、辉沸石混合均匀,粉碎,过250-350目筛,待用;
(3)将海带渣、浒苔、泡叶藻、竹粉、油茶壳、棕榈皮、向日葵秸秆烘干后混合均匀,粉碎,过200-300目筛,680-720℃煅烧4-6h,然后按照固液比1:8-10的比例将煅烧后的混合物加入到摩尔浓度为1.5mol/L的氯化锌溶液中,在室温下浸泡24-48h,然后微波加热至820-880℃,保温3-4h,冷却至室温,过滤,再按照固液比1:6-8的比例将滤渣加入到摩尔浓度为1mol/L的硫酸溶液中,在室温下浸泡24-48h,过滤,用蒸馏水洗涤至中性,烘干后与步骤(2)制得的粉末混合均匀,再加入相当于混合粉末质量8-12%的尿素和5-10%的碳酸氢钠,充分搅拌均匀,1120-1160℃煅烧2-3h,冷却至室温,即得生物炭;
(4)将步骤(1)制得的光触媒粉与步骤(3)制得的生物炭混合均匀,即得所需的生物炭光触媒甲醛净化剂。
本发明的有益效果:
本发明通过海带渣、浒苔、泡叶藻、竹粉、油茶壳、棕榈皮、向日葵秸秆等原料制成的生物炭不仅具有多孔特性,还具有具有良好的负离子释放和远红外线放射效能,能够有效吸附和分解甲醛,拟薄水铝石、硅藻土、辉沸石煅烧制成的多孔陶瓷以及金刚药石、水浮石、蒙脱石本身在结构上和化学上的特殊构造有着吸附作用,对甲醛具有很强的吸附作用;本发明还利用了纳米钛酸锶、纳米硫化锌的光催化反应,可以高效率地除掉空气中甲醛。本发明制得的生物炭光触媒甲醛净化剂吸除甲醛效果明显,见效快,去除率高,安全环保,市场前景广阔。
具体实施方式
一种生物炭光触媒甲醛净化剂,由以下重量(kg)的原料制成:海带渣27、浒苔21、泡叶藻16、竹粉20、油茶壳17、棕榈皮12、向日葵秸秆11、拟薄水铝石13、硅藻土18、辉沸石23、金刚药石25、水浮石24、蒙脱石12、纳米钛酸锶11、纳米硫化锌7。
一种生物炭光触媒甲醛净化剂的制备方法,包括以下步骤:
(1)将金刚药石、水浮石、蒙脱石混合均匀,粉碎,过350目筛,然后加水搅拌制成浓度为50%的悬浮液,6000r/min高速搅拌30min,喷雾干燥成粉末,然后加入纳米钛酸锶和纳米硫化锌,5000r/min干法球磨2.5h,球料比12:1,即得光触媒粉;
(2)将拟薄水铝石、硅藻土、辉沸石混合均匀,粉碎,过300目筛,待用;
(3)将海带渣、浒苔、泡叶藻、竹粉、油茶壳、棕榈皮、向日葵秸秆烘干后混合均匀,粉碎,过250目筛,700℃煅烧5h,然后按照固液比1:9的比例将煅烧后的混合物加入到摩尔浓度为1.5mol/L的氯化锌溶液中,在室温下浸泡36h,然后微波加热至850℃,保温4h,冷却至室温,过滤,再按照固液比1:7的比例将滤渣加入到摩尔浓度为1mol/L的硫酸溶液中,在室温下浸泡36h,过滤,用蒸馏水洗涤至中性,烘干后与步骤(2)制得的粉末混合均匀,再加入相当于混合粉末质量10%的尿素和8%的碳酸氢钠,充分搅拌均匀,1140℃煅烧3h,冷却至室温,即得生物炭;
(4)将步骤(1)制得的光触媒粉与步骤(3)制得的生物炭混合均匀,即得所需的生物炭光触媒甲醛净化剂。
上述实施例制得的生物炭光触媒甲醛净化剂与市面上普通甲醛净化剂性能相比较如下所示:
房间35m2,甲醛浓度为0.38mg/m3:使用普通甲醛净化剂200g,24h小时后,甲醛浓度为0.20mg/m3;使用生物炭光触媒甲醛净化剂200g,24小时后,甲醛浓度为0.03mg/m3;
房间92m2,甲醛浓度为0.32mg/m3:使用普通甲醛净化剂400g,24h小时后,甲醛浓度为0.18mg/m3;使用生物炭光触媒甲醛净化剂400g,24小时后,甲醛浓度为0.01mg/m3;
房间118m2,甲醛浓度为0.26mg/m3:使用普通甲醛净化剂800g,24h小时后,甲醛浓度为0.15mg/m3;使用生物炭光触媒甲醛净化剂800g,24小时后,甲醛浓度为0.02mg/m3。
Claims (2)
1.一种生物炭光触媒甲醛净化剂,其特征在于,由以下重量份的原料制成:海带渣22-34、浒苔13-26、泡叶藻11-22、竹粉15-25、油茶壳12-24、棕榈皮10-15、向日葵秸秆8-16、拟薄水铝石10-15、硅藻土15-20、辉沸石17-29、金刚药石21-29、水浮石16-28、蒙脱石10-15、纳米钛酸锶9-17、纳米硫化锌5-10。
2.一种如权利要求1所述的生物炭光触媒甲醛净化剂的制备方法,其特征在于,包括以下步骤:
(1)将金刚药石、水浮石、蒙脱石混合均匀,粉碎,过300-400目筛,然后加水搅拌制成浓度为45-55%的悬浮液,5000-8000r/min高速搅拌20-45min,喷雾干燥成粉末,然后加入纳米钛酸锶和纳米硫化锌,4000-6000r/min干法球磨2-3h,球料比10-15:1,即得光触媒粉;
(2)将拟薄水铝石、硅藻土、辉沸石混合均匀,粉碎,过250-350目筛,待用;
(3)将海带渣、浒苔、泡叶藻、竹粉、油茶壳、棕榈皮、向日葵秸秆烘干后混合均匀,粉碎,过200-300目筛,680-720℃煅烧4-6h,然后按照固液比1:8-10的比例将煅烧后的混合物加入到摩尔浓度为1.5mol/L的氯化锌溶液中,在室温下浸泡24-48h,然后微波加热至820-880℃,保温3-4h,冷却至室温,过滤,再按照固液比1:6-8的比例将滤渣加入到摩尔浓度为1mol/L的硫酸溶液中,在室温下浸泡24-48h,过滤,用蒸馏水洗涤至中性,烘干后与步骤(2)制得的粉末混合均匀,再加入相当于混合粉末质量8-12%的尿素和5-10%的碳酸氢钠,充分搅拌均匀,1120-1160℃煅烧2-3h,冷却至室温,即得生物炭;
(4)将步骤(1)制得的光触媒粉与步骤(3)制得的生物炭混合均匀,即得所需的生物炭光触媒甲醛净化剂。
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