Presenting a collection of papers resulting from the conference on and "Applied Chemistry and Industrial Catalysis (ACIC 2021), Qingdao, China, 24-26 December 2021 and ". The theme of the conference and "Clean Production and High Value Utilization and ", discussing how to reduce the environmental footprint at the source and produce high value-added end products in chemical manufacturing. The conference brought together scholars from the Chinese government, top universities, business associations, research centers and high-tech enterprises, and was committed to building and enabling a platform for the cooperation among the Chinese government, Chemical industry, and scholars. The goal was to build a bridge between R and u0026D results and the Chemical industry. The conference conducted in-depth exchanges and discussions on relevant topics such as applied chemistry and industrial catalysis aiming to provide an academic and technical communication platform for scholars and engineers engaged in scientific research and engineering practice in the field of chemistry, catalysis and function material. By sharing the research status of scientific research achievements and cutting-edge technologies, it helps scholars and engineers all over the world comprehend the academic development trend and broaden research ideas. So as to strengthen international academic research, academic topics exchange and discussion, and promote the industrialization cooperation of academic achievements.