辐射接枝制备聚甲基丙烯酸N, N-二甲氨基乙酯-TiO<sub>2</sub>光催化剂及其对Cr(VI)的吸附还原性能

王亚洋; 王亦凡; 张彬; 杨小洁; 李月生

doi:10.11889/j.1000-3436.2022-0069

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辐射接枝制备聚甲基丙烯酸N, N-二甲氨基乙酯-TiO₂光催化剂及其对Cr(VI)的吸附还原性能

辐射化学 | 更新时间：2023-09-15

- 辐射接枝制备聚甲基丙烯酸N, N-二甲氨基乙酯-TiO₂光催化剂及其对Cr(VI)的吸附还原性能
- Preparation of poly(N, N-dimethylaminoethyl methacrylate)-TiO₂ photocatalyst by radiation grafting and its adsorption and reduction performance for Cr(VI)
- 辐射研究与辐射工艺学报 2023年41卷第1期页码：33-41
- 作者机构：
  
  1.武汉科技大学化学与化工学院武汉 430074
  2.湖北科技学院辐射化学与功能材料湖北省重点实验室咸宁 437000
  3.湖北省智慧康养产业技术研究院咸宁 437000
- 作者简介：
  
  王亚洋，女，1995年4月出生，2020年于湖北科技学院获得学士学位，在读硕士研究生
  李月生，教授，E-mail: frank789292@163.com
- 基金信息：
  
  湖北省高等学校优秀中青年科技创新团队项目(T2020022);咸宁市科技研究与开发(高新类研发重点专项)项目(2021GXYF021);湖北省大学生创新创业训练计划项目(S201910927021);湖北科技学院科学发展基金(2021ZX01;2022FH09)
- DOI：10.11889/j.1000-3436.2022-0069
  中图分类号：
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王亚洋, 王亦凡, 张彬, 等. 辐射接枝制备聚甲基丙烯酸N, N-二甲氨基乙酯-TiO₂光催化剂及其对Cr(VI)的吸附还原性能[J]. 辐射研究与辐射工艺学报, 2023,41(1):33-41.

WANG Yayang, WANG Yifan, ZHANG Bin, et al. Preparation of poly(N, N-dimethylaminoethyl methacrylate)-TiO₂ photocatalyst by radiation grafting and its adsorption and reduction performance for Cr(VI)[J]. Journal of Radiation Research and Radiation Processing, 2023,41(1):33-41.
王亚洋, 王亦凡, 张彬, 等. 辐射接枝制备聚甲基丙烯酸N, N-二甲氨基乙酯-TiO₂光催化剂及其对Cr(VI)的吸附还原性能[J]. 辐射研究与辐射工艺学报, 2023,41(1):33-41. DOI： 10.11889/j.1000-3436.2022-0069.

WANG Yayang, WANG Yifan, ZHANG Bin, et al. Preparation of poly(N, N-dimethylaminoethyl methacrylate)-TiO₂ photocatalyst by radiation grafting and its adsorption and reduction performance for Cr(VI)[J]. Journal of Radiation Research and Radiation Processing, 2023,41(1):33-41. DOI： 10.11889/j.1000-3436.2022-0069.

摘要

以二氧化钛（TiO,2,）为基材，甲基丙烯酸二甲氨基乙酯（DMAEMA）为单体，采用共辐射接枝法成功合成了聚甲基丙烯酸N，N-二甲氨基乙酯-TiO,2 ,（TiO,2,-,g,-PDMAEMA）吸附-光催化剂。同时探究了单体浓度和吸收剂量对重金属离子吸附作用的影响。利用扫描电镜、X射线衍射仪、傅里叶红外光谱分析仪、热重分析仪、X射线光电子能谱、接触角等表征手段，证实了电子束共辐射接枝法成功将DMAEMA单体接枝到TiO,2,表面。在吸收剂量为60 kGy、单体浓度为20%时，TiO,2,-,g,-PDMAEMA对10 mg/L Cr(VI)具有较佳的吸附能力，吸附容量可达10.75 mg/g。在可见光诱导下，吸收剂量为60 kGy、单体浓度为10%时，制备的TiO,2,-,g,-PDMAEMA具有最佳的吸附-光催化还原能力，对10 mg/L Cr(VI)的去除率达85.56%。该新型光催化剂上的吸附-光催化协同效应可以满足去除水中Cr(VI)污染的要求。

Abstract

TiO,2,-doped polymethacrylate N, N-dimethylaminoethyl methacrylate (DMAEMA) (TiO,2,-,g,-PDMAEMA) was successfully synthesized by the co-radiation grafting method with titanium dioxide (TiO,2,) and DMAEMA as the base and the monomer, respectively. Meanwhile, the effects of monomer concentration and absorbed dose on the adsorption of heavy metal ion were investigated. A series of characterizations, including X-ray diffraction, scanning electron microscopy, Fourier-transform infrared spectroscopy, thermogravimetry, X-ray photoelectron spectroscopy and contact angle, confirmed that DMAEMA monomer was successfully grafted onto TiO,2, surface by electron beam co-radiation grafting method. When the absorbed dose was 60 kGy and the monomer concentration was 20%, TiO,2,-,g,-PDMAEMA exhibited excellent adsorption capacity for Cr (VI, 10 mg/L), up to 10.75 mg/g. In addition, the TiO,2,-,g,-PDMAEMA prepared at 60 kGy absorption dose and 10% monomer concentration displayed the optimal adsorption-photocatalytic reduction ability under visible-light irradiation, and the removal rate of Cr (VI, 10 mg/L) reached 85.56%. In conclusion, the adsorption-photocatalytic synergistic effect of this new photocatalyst could meet the requirement of removing Cr (VI) from water.

关键词

二氧化钛甲基丙烯酸二甲氨基乙酯辐射接枝光催化Cr（VI）吸附-光催化还原

Keywords

TiO2Polymethacrylate NN-dimethylaminoethyl methacrylate (PDMAEMA)Radiation graftingPhotocatalyticCr（VI）Adsorption-photocatalytic reduction

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辐射接枝制备聚甲基丙烯酸N, N-二甲氨基乙酯-TiO2光催化剂及其对Cr(VI)的吸附还原性能

Preparation of poly(N, N-dimethylaminoethyl methacrylate)-TiO2 photocatalyst by radiation grafting and its adsorption and reduction performance for Cr(VI)

DOI：10.11889/j.1000-3436.2022-0069

摘要

Abstract

关键词

Keywords

references

辐射接枝制备聚甲基丙烯酸N, N-二甲氨基乙酯-TiO₂光催化剂及其对Cr(VI)的吸附还原性能

Preparation of poly(N, N-dimethylaminoethyl methacrylate)-TiO₂ photocatalyst by radiation grafting and its adsorption and reduction performance for Cr(VI)