| 华英杰，李利娜，Iliyas zhanmukamet，王崇太，马 健*.D301R树脂吸附Keggin型铁或铬取代杂多阴离子
光催化材料制备及其性能[J].海南师范大学学报自科版,2020,33(1):18-23 |
| D301R树脂吸附Keggin型铁或铬取代杂多阴离子
光催化材料制备及其性能 |
| Preparation of Fe or Cr Substituted Heteropoly Anions AdsorbedPhotocatalyst by D301R Resin and Its Properties |
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| DOI：10.12051/j.issn.1674-4942.2020.01.005 |
| 中文关键词: 铁或铬取代杂多阴离子 阴离子交换树脂D301R 可见光降解 |
| 英文关键词: Iron or chromium substituted heteropoly anion anion exchange resin D301R visible light degrad |
| 基金项目:海南省社会发展专项（ZDYF2017083）；海南省 2019 年研究生创新科研课题（Hys2019-276）；海南师范大学
2018年度研究生创新科研课题（Hsyx-2018-24） |
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| 中文摘要: |
| 用弱碱性阴离子交换树脂 D301R 对 Keggin 型铬取代磷钨杂多阴离子 PW11O39Cr（III） （H2O）4（- PW11Cr）与Keggin型铁取代磷钨杂多阴离子PW11O39Fe（III）（H2O）4（- PW11Fe）进行吸附，制备了具有可见光响应的固体光催化剂。分别考查了所制备的光催化剂在均相及异相体系中对罗丹明B（RhB）降解的光催化活性。实验结果表明：当铁、铬离子取代的磷钨杂多阴离子同时存在时，RhB溶液的降解效率均高于单一金属离子取代的磷钨杂多阴离子光催化剂，并且异相体系的光催化效率高于均相体系。当催化剂D301R/PW11Cr/PW11Fe加入量为 100 mg时，10 μmol/L的RhB水溶液在可见光（λ ＞ 420 nm）照射50 min后，降解率可达92%。 |
| 英文摘要: |
| Keggin-type chromium-substituted phosphorus-tungsten heteropolyanion PW11O39Cr(III)(H2O)4- (PW11Cr) and
Keggin-type iron-substituted phosphorus-tungsten heteropolyanion PW11O39Fe(III)(H2O)4-(PW11Fe) were adsorbed by weak⁃
ly basic anion exchange resin D301R to prepare a solid photocatalyst with visible light response. The photocatalytic activi⁃
ties of as prepared samples toward RhB degradation were conducted in homogeneous and heterogeneous systems, respec⁃
tively. PW11Fe/PW11Cr and PW11Fe/PW11Cr/D301R possess higher photocatalytic activity compared to those of PW11Fe
(PW11Cr) and PW11Fe/D301R (PW11Cr/D301R) in the degradation of RhB, respectively. In addition, the photocatalytic activ⁃
ity of PW11Fe/PW11Cr/D301R is higher than that of PW11Fe/PW11Cr. After 50 minutes irradiation by visible light (λ>420
nm), the degradation rate of RhB (10 μmol/L) reaches 92% when the dosage of D301R/PW11Cr/PW11Fe is 100 mg. |
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