Efficient　production　of　amino-,　azo-　and　azoxy-　aromatics　is　important　in　chemical　industries.　In　this　manuscript,　we　reported　that　controllable　chemoselective　hydrogenation　of　nitrobenzene　to　produce　aniline,　azoxybenzene　and　azobenzene　was　realized　over　CQDs/ZnIn2S4　nanocomposite　under　visible　light　via　simply　regulating　the　reaction　medium　including　the　alkalinity　and　the　hydrogen　source.　An　optimized　production　of　aniline　was　obtained　over　3.0　wt%　CQDs/ZnIn2S4　nanocomposite　in　a　reaction　medium　of　TEOA:　MeOH　(1:1),　while　a　strong　alkaline　reaction　medium　promote　N-N　coupling　to　produce　azoxybenzene　and　azobenzene.　In　addition,　azoxybenzne　is　the　intermediate　to　form　azobenzene　during　the　hydrogenation　of　nitrobenzene,　in　which　a　strong　hydrogen　source　like　TEOA　is　indispensable　for　the　transformation.　This　study　not　only　demonstrated　a　noble　metal-free　photocatalytic　system　for　visible　light　induced　efficient　and　controllable　chemoselective　hydrogenation　of　nitrobenzene　to　produce　aniline,　azobenzene　and　azoxybenzene,　but　also　highlights　the　great　potential　of　photocatalysis　in　organic　syntheses.　©　2020　Elsevier　Inc.