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Delocalization Effect Promoted the Indoor Air Purification via Directly Unlocking the Ring-Opening Pathway of Toluene.
Environmental Science & Technology ( IF 10.8 ) Pub Date : 2020-06-29 , DOI: 10.1021/acs.est.0c02906 Wenqiang Qu 1 , Penglu Wang 1 , Min Gao 2 , Jun-Ya Hasegawa 2 , Zhi Shen 1 , Qing Wang 1 , Ruomei Li 1 , Dengsong Zhang 1
Environmental Science & Technology ( IF 10.8 ) Pub Date : 2020-06-29 , DOI: 10.1021/acs.est.0c02906 Wenqiang Qu 1 , Penglu Wang 1 , Min Gao 2 , Jun-Ya Hasegawa 2 , Zhi Shen 1 , Qing Wang 1 , Ruomei Li 1 , Dengsong Zhang 1
Affiliation
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The ring-opening process was generally considered as the rate-determining step for aromatic volatile organic compound photocatalytic degradation. A sophisticated and intensive degradation pathway is critical to the poor removal efficiency and low mineralization. In the present contribution, we successfully tailored and identified the ring-opening pathway of toluene elimination by electron delocalization in a borocarbonitride photocatalyst. By means of modulation of the dopant coordination configuration and electron geometry in the catalyst, the lone electrons of carbon transform into delocalized counterparts, sequentially elevating the interaction between the toluene molecules and photocatalyst. The aromatic ring of toluene can be attacked directly in the effect of electron delocalization without engendering additional intermediate species, significantly facilitating the removal and mineralization of toluene. This unprecedented route-control strategy alters the aromatic-ring-based reaction behavior from toluene to CO2 and paves a way to purify the refractory pollutants from the top design.
中文翻译：
离域效应通过直接解锁甲苯的开环途径促进了室内空气的净化。
开环过程通常被认为是芳族挥发性有机化合物光催化降解的速率决定步骤。复杂而密集的降解途径是去除效率低和矿化度低的关键。在目前的贡献中，我们成功地量身定制了硼碳氮化物光催化剂中通过电子离域来消除甲苯的开环途径。通过调节催化剂中的掺杂剂配位构型和电子几何形状，碳的孤立电子转变为离域的对应物，从而逐步提高了甲苯分子与光催化剂之间的相互作用。甲苯的芳环可在电子离域作用下直接受到攻击，而不会产生其他中间物种，极大地促进了甲苯的去除和矿化。这种前所未有的路径控制策略将基于芳环的反应行为从甲苯改变为一氧化碳2并为从顶部设计中纯化耐火污染物铺平了道路。
更新日期：2020-08-04
中文翻译：
离域效应通过直接解锁甲苯的开环途径促进了室内空气的净化。
开环过程通常被认为是芳族挥发性有机化合物光催化降解的速率决定步骤。复杂而密集的降解途径是去除效率低和矿化度低的关键。在目前的贡献中，我们成功地量身定制了硼碳氮化物光催化剂中通过电子离域来消除甲苯的开环途径。通过调节催化剂中的掺杂剂配位构型和电子几何形状，碳的孤立电子转变为离域的对应物，从而逐步提高了甲苯分子与光催化剂之间的相互作用。甲苯的芳环可在电子离域作用下直接受到攻击，而不会产生其他中间物种，极大地促进了甲苯的去除和矿化。这种前所未有的路径控制策略将基于芳环的反应行为从甲苯改变为一氧化碳2并为从顶部设计中纯化耐火污染物铺平了道路。
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