Nanoporous clay with carbon sink and pesticide trapping properties T. Woignier, L. Duffours, P. Colombel and P. Dieudonné Eur. Phys. J. Special Topics, 224 9 (2015) 1945-1962 Published online: 30 July 2015 DOI: 10.1140/epjst/e2015-02512-x