H2O2、金属离子等对Cr(Ⅵ)离子光催化还原及对敌敌畏农药光催化氧化的影响

doi:10.7517/j.issn.1674-0475.2002.06.435

影像科学与光化学 ›› 2002, Vol. 20 ›› Issue (6): 435-440.DOI: 10.7517/j.issn.1674-0475.2002.06.435

H₂O₂、金属离子等对Cr(Ⅵ)离子光催化还原及对敌敌畏农药光催化氧化的影响

陈士夫^1,2, 曹更玉¹

1. 中国科学技术大学, 化学物理系, 合肥, 230026;
2. 淮北煤炭师范学院, 化学系, 淮北, 235000

收稿日期:2002-03-08 修回日期:2002-04-15 出版日期:2002-11-23 发布日期:2002-11-23
通讯作者: 陈士夫(1963- ),男,教授,主要从事光催化及其在生态环境保护中的应用等研究,通讯联系人.
基金资助:
安徽省自然科学基金资助项目(01045304)

EFFECTS OF H₂O₂ METAL IONS ETC. ON THE PHOTOCATALYTIC REDUCTION OF DICHROMATE AND PHOTOCATALYTIC OXIDATION OF DICHLORVOS

CHEN Shi-fu^1,2, CAO Geng-yu¹

1. Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, P. R. China;
2. Department of Chemistry, Huaibei Coal Teachers College, Huaibei 235000, P. R. China

Received:2002-03-08 Revised:2002-04-15 Online:2002-11-23 Published:2002-11-23

摘要/Abstract

摘要： 以Cr(Ⅵ)离子、敌敌畏农药作为污染物的代表,研究了H₂O₂、金属离子等对Cr(Ⅵ)离子光催化还原及对敌敌畏农药光催化氧化的影响.结果表明,加入少量的H₂O₂对Cr(Ⅵ)离子的光催化还原起阻碍作用,对敌敌畏农药的光催化氧化起促进作用;加入少量的Cu²⁺对Cr(Ⅵ)离子光催化还原及对敌敌畏农药的光催化氧化均起促进作用;加入Zn²⁺、Na⁺对Cr(Ⅵ)离子及敌敌畏农药的光催化降解均无明显的影响;加入甲醇、甲苯对Cr(Ⅵ)离子的光催化还原起促进作用,对敌敌畏农药的光催化氧化起阻碍作用.探讨了H₂O₂、金属离子等对Cr(Ⅵ)离子光催化还原及对敌敌畏农药光催化氧化影响的机理.

关键词: Cr(Ⅵ)离子, 敌敌畏, 光催化, 氧化, 还原, 机理

Abstract: Effects of H₂O₂、metal ions et al on the photocatalytic reduction of dichromate and photocatalytic oxidation of dichlorvos were studied.The results showed that with the addition of a small amount of H₂O₂,the photocatalytic reduction of dichromate was hindered,while the photocatalytic oxidation of dichlorvos was accelerated.With the addition of trace amounts of Cu²⁺,both of the two above mentioned reactions were accelerated.With the addition of Zn²⁺ and Na⁺,no obviously effects on the reactions were observed.With the addition of methanol and toluene,the photocatalytic reduction of dichromate was accelerated,while the photocatalytic oxidation of dichlorvos was hindered.The possible mechanisms of the additives on the photocatalytic reduction of dichromate and photocatalytic oxidation of dichlorvos were also investigated.

Key words: dichromate, dichlorvos, photocatalysis, oxidation, reduction, mechanism

中图分类号:

陈士夫, 曹更玉. H₂O₂、金属离子等对Cr(Ⅵ)离子光催化还原及对敌敌畏农药光催化氧化的影响[J]. 影像科学与光化学, 2002, 20(6): 435-440.

CHEN Shi-fu, CAO Geng-yu. EFFECTS OF H₂O₂ METAL IONS ETC. ON THE PHOTOCATALYTIC REDUCTION OF DICHROMATE AND PHOTOCATALYTIC OXIDATION OF DICHLORVOS[J]. Imaging Science and Photochemistry, 2002, 20(6): 435-440.

参考文献

[1] Hoffmann M R,Martin S T,Bahnemann D W.Environmental application of semiconductor photocatalysis[J].Chem.Rev.,1995,95:69-96.
[2] Moneer M,Philip R,Das S.Photocatalytic degradation of wastewater pollutants titanium dioxide-mediate oxidation of a textile acid blue 40#[J].Res.Chem.Intermed.,1997,23(3):233-246.
[3] Pralrle M R,Evans L R,Stange B.An investigation of TiO₂ photocatalysis for the treatment of water contaminated with metals and organic chemicals[J].Environ.Sci.Technol.,1993,27:1778-1782.
[4] 付宏祥,吕功煊,张宏,等.Cr(Ⅵ)离子在TiO₂表面的吸附与光催化还原消除[J].环境科学,1998,19(3):80-83.Fu H X,Lu G X,Zhang H,et al.Adsorption and photocatalytic reduction of Cr(Ⅵ) ion on TiO₂[J].Environ.Sci.,1998,19(3):80-83.
[5] Zhao M Y,Chen S F,Tao Y W.Photocatalytic degradation of organophosphorous pesticides using TiO₂ thin films[J].J.Chem.Technol.Biotechnol.,1995,64:339-344.
[6] Chen S F,Zhao M Y,Tao Y W.Photocatalytic degradation of organophosphorous pesticids using TiO₂ supported on fiberglass[J].Microchemical Journal,1996,54:54-58.
[7] 陈士夫,陶跃武.热处理对TiO₂光催化活性的影响[J].南开大学学报,1998,31(4):79-82.Chen S F,Tao Y W.The effect of heat treatment on the photocatalytic activity of TiO₂[J].Journal of Nankai University,1998,31(4):79-82.
[8] Chen S F,Cheng X L.Photocatalytic reduction of dichromate by titanium dioxide supported on hollow glass microbeads[J].Chin.J.Chem.,1999,17(4):419-424.
[9] Ollis D F,Pelizzetti E,Serpone N.Destruction of water contaminants[J].Environ.Sci.Technol.,1991,(9):1523-1529.
[10] Balcioglu I A,Inel Y.Photocatalytic degradation of organic contaminants in semiconductor suspensions with added H₂O₂[J].J.Environ.Sci.Health.,1996,(13):123-138.
[11] So C M,Cheng M Y,Yu J C,et al.Degradation of azo dye procion red MX-5B by photocatalytic oxidation[J].Chemosphere,2002,46:905-912.
[12] Chen S F,Zhao M Y.Photocatalytic degradation of dichlorvos using TiO₂ supported on hollow glass microbeads[J].J.Environ.Sci.,1997,9(3):278-282.

[1]	黄海清, 肖赛金, 杨光赵耀, 赵家辉. 氧化钼量子点无标记快速ATP检测[J]. 影像科学与光化学, 2020, 38(6): 950-955.
[2]	贾红丹, 邢文莉, 宋玉姣, 郑社洪, 高云燕, 欧植泽. 负载于二氧化硅纳米粒子的菲并咪唑衍生物对Hg²⁺的检测[J]. 影像科学与光化学, 2020, 38(4): 601-608.
[3]	郑祥飞, 孙小侠, 刘敬成, 穆启道, 刘仁, 刘晓亚. 化学增幅型光刻胶材料研究进展[J]. 影像科学与光化学, 2020, 38(3): 392-408.
[4]	李星洲, 侯尊岩, 何勇. 超临界二氧化碳光聚合制备可交联含氟聚合物颗粒及应用[J]. 影像科学与光化学, 2019, 37(5): 392-401.
[5]	李文廷, 侯朋飞, 康鹏. 氮化铌电催化还原CO₂[J]. 影像科学与光化学, 2019, 37(2): 107-117.
[6]	李箫宁, 李檬. 改性凹凸棒的制备及对砷离子的吸附研究[J]. 影像科学与光化学, 2019, 37(2): 127-135.
[7]	李玥, 李红英, 常玉雪, 周宏艳, 于翔. MoS₂/TiO₂纳米管阵列的一步沉积法制备及光电性能研究[J]. 影像科学与光化学, 2018, 36(4): 331-339.
[8]	胡先运, 孟铁宏, 王传明, 张汝国, 李炜, 吕廷勇, 江家志, 莫兴泽, 龙友国, 余跃生, 潘卫东. 碳点-核酸/氧化石墨烯荧光探针用于miRNA-21的细胞成像[J]. 影像科学与光化学, 2018, 36(4): 350-358.
[9]	李玥, 宋育泽, 陶雁忠, 高风仙, 汤宁. CdS/TiO₂复合纳米网的制备及光催化性能研究[J]. 影像科学与光化学, 2018, 36(3): 275-282.
[10]	李玲, 杜云舒, 王璇, 韩建, 王传义. 甲醛气体在ZnO表面光降解的机理研究[J]. 影像科学与光化学, 2018, 36(2): 171-177.
[11]	吴世康. 光催化中表面等离子体与半导体间的电子转移与能量转移[J]. 影像科学与光化学, 2018, 36(1): 1-13.
[12]	卢永斌, 辛芝娟, 刘思, 雷友嘉, 王红艳. 铜分子催化剂用于光电化学水氧化[J]. 影像科学与光化学, 2018, 36(1): 100-107.
[13]	张建刚, 谢晋鹏, 马望京, 梁庆华, 李智. 高温固相合成Gd₂O₂S:Tb³⁺微米亚微米晶及其发光性能研究[J]. 影像科学与光化学, 2017, 35(6): 824-832.
[14]	张雪超, 谭剑波, 张力. 水相光引发聚合诱导自组装制备CO₂响应性聚合物囊泡[J]. 影像科学与光化学, 2017, 35(6): 833-842.
[15]	Samuel Lascio, 籍海峰. 磷纳米材料的光学、光电子和光催化应用[J]. 影像科学与光化学, 2017, 35(5): 587-602.

H₂O₂、金属离子等对Cr(Ⅵ)离子光催化还原及对敌敌畏农药光催化氧化的影响

EFFECTS OF H₂O₂ METAL IONS ETC. ON THE PHOTOCATALYTIC REDUCTION OF DICHROMATE AND PHOTOCATALYTIC OXIDATION OF DICHLORVOS

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价