“…In order to establish environmentally friendly chemical processes for sustainable industries, great efforts have been paid for the use of renewable sources [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] and also for the development of a ''Green Chemical Process'', which is safer, less toxic, and an energy saving chemical process with less waste. [16][17][18][19][20][21] The utilization of heterogeneous catalysts is one of the effective approaches for both biomass conversion and green chemical processes because of easy separation from products and potentially recyclable nature. Among heterogeneous catalysts, solid acids are frequently applied for a variety of key reactions, such as hydrolysis of cellulose, [7][8][9][10][11] dehydration of saccharides, 12 acetylation, alkylation, and acylation.…”