Photocatalytic removal of tetracycline(TC)from the wastewater is of great value in the chemical and environmental engineering field.Here,we introduced a facile one-step method for the synthesis of BiOBr/Bi2WO6 heteroj...Photocatalytic removal of tetracycline(TC)from the wastewater is of great value in the chemical and environmental engineering field.Here,we introduced a facile one-step method for the synthesis of BiOBr/Bi2WO6 heterojunctions by using cheap CTAB as the Br source.We showed the possibility of our method to fine-tune the content of BiOBr in the produced BiOBr/Bi2WO6 by simply changing the dosage of cetyltrimethylammonium bromide(CTAB),providing a platform for the delicate tuning of the visiblelight absorbance ability of the composites.With a suitable heterojunction structure of BiOBr/Bi2WO6-0.2,it exhibited an ultrarapid photocatalytic activity towards TC(20 mgL^(-1)),with a competitive removal efficiency of 88.1%within 60 min and an ultrahigh removal rate of 0.0349 min^(-1).It could also be robustly recycled for at least 5 cycles with slight removal efficiency loss.We demonstrated that this exciting photocatalytic performance was due to the highly decreased recombination of photoinduced electrons and holes on our composites by constructing this heterojunction structure,and the resultingOH andO^(-)_(2)contributed to the effective degradation of TC to CO_(2).展开更多
Drawing upon the knowledge-based view and team learning,we investigated how heterogeneity in top man agement teams(TMTs)in China in flue nces global expansi on strategies.Using panel data from Chinese listed firms fro...Drawing upon the knowledge-based view and team learning,we investigated how heterogeneity in top man agement teams(TMTs)in China in flue nces global expansi on strategies.Using panel data from Chinese listed firms from 2008 to 2014,we found that TMT functional background heterogeneity could positively affect firms'commitment to outward foreign direct investment(OFDI),as the diversification of TMT members can enrich the team's knowledge,facilitate efficient team learning,and enhance the decision-making capacity on overseas expansi on.However,tenure heterogeneity may hinder knowledge acquisition and team learning among TMT members,hence undermining firms/OFDI commitment.展开更多
基金the National Natural Science Foundation of China(Grant No.22108040 and 21878054)the Natural Science Foundation of Fujian Province(2020J05130)+1 种基金Science and Technology Project of Fujian Educational Committee(JAT190051)Research Project of Ningde Normal University(2019T03).
文摘Photocatalytic removal of tetracycline(TC)from the wastewater is of great value in the chemical and environmental engineering field.Here,we introduced a facile one-step method for the synthesis of BiOBr/Bi2WO6 heterojunctions by using cheap CTAB as the Br source.We showed the possibility of our method to fine-tune the content of BiOBr in the produced BiOBr/Bi2WO6 by simply changing the dosage of cetyltrimethylammonium bromide(CTAB),providing a platform for the delicate tuning of the visiblelight absorbance ability of the composites.With a suitable heterojunction structure of BiOBr/Bi2WO6-0.2,it exhibited an ultrarapid photocatalytic activity towards TC(20 mgL^(-1)),with a competitive removal efficiency of 88.1%within 60 min and an ultrahigh removal rate of 0.0349 min^(-1).It could also be robustly recycled for at least 5 cycles with slight removal efficiency loss.We demonstrated that this exciting photocatalytic performance was due to the highly decreased recombination of photoinduced electrons and holes on our composites by constructing this heterojunction structure,and the resultingOH andO^(-)_(2)contributed to the effective degradation of TC to CO_(2).
文摘Drawing upon the knowledge-based view and team learning,we investigated how heterogeneity in top man agement teams(TMTs)in China in flue nces global expansi on strategies.Using panel data from Chinese listed firms from 2008 to 2014,we found that TMT functional background heterogeneity could positively affect firms'commitment to outward foreign direct investment(OFDI),as the diversification of TMT members can enrich the team's knowledge,facilitate efficient team learning,and enhance the decision-making capacity on overseas expansi on.However,tenure heterogeneity may hinder knowledge acquisition and team learning among TMT members,hence undermining firms/OFDI commitment.
