掺氮TiO2纳米颗粒稳定的Pickering乳液制备及其触发酶反应

doi:10.13218/j.cnki.csdc.2017.03.004

日用化学工业 ›› 2017, Vol. 47 ›› Issue (3): 137-141.doi: 10.13218/j.cnki.csdc.2017.03.004

掺氮TiO₂纳米颗粒稳定的Pickering乳液制备及其触发酶反应

赵茂军, 白瑞雪, 刘棋, 郭婷, 王盛民, 孟涛

西南交通大学生命科学与工程学院,四川成都 610031

收稿日期:2016-10-05 出版日期:2017-03-22 发布日期:2019-03-19
通讯作者: 孟涛,副教授,博士,电话:(028)87603202,E-mail:taomeng@swjtu.edu.cn。
作者简介:赵茂军(1987-),男,甘肃天水人,硕士研究生。
基金资助:
国家自然科学基金资助项目(21406181);中央高校基本科研业务费专项资金资助项目(SWJTU12CX049, 2682015CX050);四川省科技厅重点研发项目(17ZDYF1523)

Study on preparation of Pickering emulsion stabilized by N-TiO₂ nanoparticles and triggering enzymatic reaction

ZHAO Mao-jun, BAI Rui-xue, LIU Qi, GUO Ting, WANG Sheng-min, MENG Tao

School of Life Sciences and Engineering,Southwest Jiaotong University,Chengdu,Sichuan 610031,China

Received:2016-10-05 Online:2017-03-22 Published:2019-03-19

摘要/Abstract

摘要： 利用烷基硅烷接枝的掺氮TiO₂纳米颗粒稳定W/O型Pickering乳液,研究了TiO₂掺氮量对成乳的影响以及乳液的可见光响应性能,并将其作为微反应器应用于触发脲酶催化尿素生成碳酸铵的反应中。结果表明:在可见光照射下,烷基硅烷接枝的掺氮TiO₂纳米颗粒表面由疏水变为亲水,可引发乳液液滴聚并以及液滴内酶促反应发生。

关键词: 掺氮TiO₂纳米颗粒, Pickering乳液, 可见光响应, 酶反应

Abstract: W/O type Pickering emulsion stabilized by alkyl silane grafted nitrogen doped titanium dioxide (s-N-TiO₂) nanoparticles was used as micro-bioreactor for producing ammonium carbonate from carbamide by catalytic action of urease.Effect of amount of nitrogen doped on formation of the emulsion and the visible-light-responsive performance were studied.The results show that under the irradiation of visible light,surface of the s-N-TiO₂ nanoparticles changes from hydrophobic to hydrophilic and coalescence of micro drops of the emulsion as well as the enzymatic reaction in the drops can be triggered.

Key words: nitrogen doped TiO₂ nanoparticles, Pickering emulsions, visible-light responsive, enzymatic reaction

中图分类号:

O648.2+3

赵茂军, 白瑞雪, 刘棋, 郭婷, 王盛民, 孟涛. 掺氮TiO₂纳米颗粒稳定的Pickering乳液制备及其触发酶反应[J]. 日用化学工业, 2017, 47(3): 137-141.

ZHAO Mao-jun, BAI Rui-xue, LIU Qi, GUO Ting, WANG Sheng-min, MENG Tao. Study on preparation of Pickering emulsion stabilized by N-TiO₂ nanoparticles and triggering enzymatic reaction[J]. China Surfactant Detergent & Cosmetics, 2017, 47(3): 137-141.

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掺氮TiO₂纳米颗粒稳定的Pickering乳液制备及其触发酶反应

Study on preparation of Pickering emulsion stabilized by N-TiO₂ nanoparticles and triggering enzymatic reaction

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