Our previous group members have found their new positions in government, industry, and university: Dr. Yi Di Yuan as a Researcher at Home Team Science and Technology Agency (HTX), Singapore; Dr. Xin Yu as a Researcher at Research Institute of Innovative Technology for the Earth, Inorganic Membranes Research Center, Japan; Dr. Weidong Fan as an Associate Professor at China University of Petroleum (East China), China. Congratulations to them!