TY  - MANSCPT
AU  - Chan,Jun Jie
TI  - Direct valorization of cellulose to glycolic ACID through green heteropoly ACID catalyst supported on tin (iv) oxide
SN  - THE0010494 (Local)
PY  - 2025///
CY  - Kuantan, Pahang
PB  - UMPSA
KW  - Faculty of Industrial Sciences and Technology
KW  - Dissertations
KW  - Universities and colleges
KW  - Theses
N1  - Faculty of Industrial Sciences and Technology; Final Year Report (Bachelor of Applied Science of Industrial Chemistry) -- Universiti Malaysia Pahang Al-Sultan Abdullah - 2025; Include bibliographical reference
N2  - This study focuses on the catalytic conversion of cellulose, a renewable and abundant  component of lignocellulosic biomass, into glycolic acid, a valuable compound with wide  industrial applications. Using phosphomolybdic acid (PMA) supported on tin (IV) oxide (SnO₂)  as a heterogeneous catalyst, the research investigates the optimization of glycolic acid synthesis  under mild reaction conditions. The study explores the influence of PMA loading on the  physicochemical properties of the catalyst and evaluates its catalytic performance in the  presence of hydrogen peroxide (H₂O₂) as an oxidant. Characterization techniques such as FTIR,  XRD, FESEM-EDS, N₂-physisorption and pyridine adsorption reveal the role of PMA in  enhancing surface area, acidity, catalytic efficiency and active sites. The optimized process  achieves a high glycolic acid yield of approximately 60% with minimized by-products,  demonstrating the bifunctional catalytic behavior of PMA for acid hydrolysis and oxidative  cleavage. Systematic parameter studies highlight the importance of reaction time, pH, and  oxidant concentration in maximizing yield and selectivity. Additionally, the study confirms the  reusability and stability of the PMA/SnO₂ catalyst, showcasing its potential for scalable and  sustainable industrial applications. Recommendations for future work include exploring  alternative cellulose sources, employing advanced characterization techniques, testing other  green oxidants, and conducting reproducibility experiments to validate data. This research  contributes to the development of efficient and environmentally friendly processes for biomass  valorization, aligning with global sustainability goals
UR  - https://umpir.ump.edu.my/id/eprint/46155
ER  -