The best outcome for MMM incorporation was obtained using sodium formate. SEM micrographs of the material reproduced from literature is shown in Figure , and the micrographs of the synthesis modulated by 2 mmol/L sodium formate is shown in Figure , offering spherical shape. MIL-116(Ga) consists of 1,2,3,4,5,6-benzenehexacarboxylic acid (mellitic acid) which is coordinated to Ga 3+ -ions