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Highlights A low-strength-centrifugation-assisted approach for rapid gelation of Ti3C2Tx MXene with a very low dispersion concentration into multifunctional 3D architectures is developed. On the basis of pH-induced surface termination changes, the MXene gels exhibit reconfigurable internal structures and tunable rheological, tribological, electrochemical, infrared-emissive and photothermal-conversion properties. By adopting a gel with optimized pH value, high lubrication, remarkable capacitance, long-term capacitance retention and high-precision screen- or extrusion-printing into high-resolution anticounterfeiting patterns can be achieved.